Answer:
The best answer is A - having differences.
Step-by-step explanation:
When comparing heterogeneous and homogeneous, a helpful trick to remembering the difference is to look at the root of each word. Homo- means “same”, and hetero- means “different”.
Heterogeneous can be used to describe any group of something that is mixed and varied in composition (i.e. a box of Legos).
Homogeneous can be used to describe any group of something that is the same composition throughout (i.e. sweet tea).